Polaris 2000 Universal Snowmobile - Manual (Page 70)

65
MAINTENANCE
Bleeding the Cooling System
WARNING
Never bleed the cooling system when the engine
is hot. Severe personal injury could result from
steam or hot liquid.
Never remove the pressure cap (1) when the en-
gine is warm or hot. If the pressure cap is to be re-
moved, the engine must be cool.
Use of a non-standard pressure cap will not allow
the recovery system to function properly. If the cap
should need replacement contact your dealer for
the correct replacement part and pressure rating.
Recovery System Models
If the coolant level becomes low in the recovery
tank, the system should be bled of any trapped air
using the following procedure:
1. Fill the recovery tank with coolant to the
maximum indicated mark.
2. Elevate front end of machine slightly to aid
bleeding of the heat exchangers.
3. With pressure cap removed, add coolant and
fill to the top of the filler neck.
4. Install the pressure cap with the lever lock up
in its release position.
5. Run the engine at slow (600 RPM) for two to three minutes. This will purge the
system of trapped air.
6. Close the lever lock and check recovery tank fluid level.
CAUTION:
Most cooling systems are equipped with a filter (2) which should be periodically in-
spected or replaced. If coolant flow becomes restricted or plugged, coolant loss,
air lock or engine damage may result.
1
2